HtmlFileCacheUpdate.php

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<?php
use Wikimedia\Assert\Assert;
 
class HtmlFileCacheUpdate implements DeferrableUpdate, MergeableUpdate {
    private $prefixedDbKeys = [];
 
    public function __construct( array $prefixedDbKeys ) {
        $this->prefixedDbKeys = $prefixedDbKeys;
    }
 
    public function merge( MergeableUpdate $update ) {
        Assert::parameterType( __CLASS__, $update, '$update' );
        '@phan-var self $update';
 
        $this->prefixedDbKeys = array_merge( $this->prefixedDbKeys, $update->prefixedDbKeys );
    }
 
    public static function newFromTitles( $titles ) {
        $prefixedDbKeys = [];
        foreach ( $titles as $title ) {
            $prefixedDbKeys[] = $title->getPrefixedDBkey();
        }
 
        return new self( $prefixedDbKeys );
    }
 
    public function doUpdate() {
        foreach ( array_unique( $this->prefixedDbKeys ) as $prefixedDbKey ) {
            HTMLFileCache::clearFileCache( $prefixedDbKey );
        }
    }
}